52 Records of the Indian Museum. [Vol. IV, 1910.] 



Genitalia. — ( $ ) The superior and inferior appendages short, 

 subequal. {&) Inferior appendages slender, shorter than the 

 basal joint of the superior appendages, bearing about six short 

 chitinous spines at the tip. Intermediate appendages with three 

 lobes, the proximal lobe slender, curved, filiform ; the middle lobe 

 longer than either of the other two, slender, arched, with a fringe 

 of hairs on the concave posterior margin ; the distal lobe concave 

 above, pointed, clothed with fine hairs. The superior appendage 

 with the distal joint rather longer than the proximal one, bearing 

 five short, blunt chsetse, three at the tip (the middle one being 

 shorter than that at either side of it) and two, one nearer the base 

 than the other, on the middle part of the joint. The intromittent 

 organ very short, pointed, the genital filaments well developed. 



By the kindness of Dr. J. H. Ashworth, I have been able to 

 compare Indian specimens with specimens from S. Europe (see 

 Nature, vol. 81, p. 518, 1909). 



Meijere's P. angustipennis , so far as is shown by his figure of 

 the wing and his brief description, only differs from P. papatasi as 

 regards the outline of the posterior border of the wing and the 

 longitudinal vein adjacent to it. In some species {e.g., P. babu) 

 this is a variable character.* 



Distribution. — Southern Europe and Northern India (plains) ; 

 ? N. Africa. I have seen a number of specimens from Rawalpindi 

 (collected by Mr. C. W. Mason in September) and a single male 

 from Pusa, Bihar, Northern Bengal [Howlett). The Rawalpindi 

 specimens were accompanied by specimens of P. babu and were for 

 the most part infected by a parasitic fungus. 



The importance of this species from a medical point of view is 

 expounded in Doerr, Franz and Taussig's Das Pappatacifieher 

 (1909). 



1 It would perhaps be more correct to say that this part of the wing is 

 peculiarly liable to distortion in preserved specimens. A comparison of the differ- 

 ent figures of the wing of P. papatasi that have been published proves very consi- 

 derable apparent variation in this respect. 



